Online Self-Tests(E4)

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  1. If x + 3 = 2, find the value of (x + 3) – 1.

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  (1 point)

  
  

  Answer:

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  2. Evaluate the expression when x × 0.5 = 3.

  3 – x × 0.5

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  (1 point)

  
  

  Answer:

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  3. If x = 0.5, find the value of 10 × x + x.

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  (1 point)

  
  

  
  

  Answer:

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  4. If x = 0.5 and y = 1.5, find the value of y – x.

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  (1 point)

  
  

  Answer:

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  5. Evaluate the expression when x = 10 and y = 0.5.

  x × y

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  (1 point)

  
  

  Answer:

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  6. If (0.5 x x) = 4 and y = 5, find the value of x – y.

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  (1 point)

  
  

  Answer:

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